1.什么是名词性从句?
用一个句子充当名词(代词)功能叫名词性从句。 在主句中它常作主语、宾语、表语或同位语。
The truth is true. (true 作表语) The truth is that he has never been to the countryside.(that 引导表语从句) Mr. Zhang is a kind person. (Zhang 是Mr.的同位语) The fact that deeds are better than words is quite clear. (that 引导同位语从句)